Tiger I Modifications List






Tiger I Modifications List 

(copyright Thomas L. Jentz 2001)

Modification Intro Date Described in Reference 1 Text Section Shown on Drawing* in Reference 1 Reference Book Accurately Showing Each Modification 
  Ref.1 Ref.2 Ref.3 Ref.4
Bent narrow front track guard May42 Pg86-88 X X / /
Drive sprocket ring alignment Aug42 Pg86-88 X X /
Jul42 tools w/5 cleaning rods Aug42    
Vent slit in engine hatch Aug42    
Hooks to hold rear louvers open Aug42 Pg86-88 X X / /
Hinged flapper on exhaust Aug42 Pg86-88 X X / /
Pz.III baggage bin (middle) Aug42 Pg86-88 X X
Holes to mount camouflage frame Aug42 Pg86-88 X X / /
Smoke candle dischargers Aug42 Pg86-88 X X / /
Track cable on hull side Sep42 Pg86-88 X X / /
Two hinged toggle bolts Sep42 Pg86-88 X X / /
Tarp tabs Sep42 Pg86-88 X X
Full tool set Sep42 Pg86-88 X X / /
Delete antenna base on rear Oct42 Pg86-88 X X /
Brackets “Feifel” air filters Oct42 Pg86-88 X X / /
Cylindrical convoy tail light Oct42 Pg86-88 X X / /
Tow cables reversed Oct42 Pg100-102 X X / /
Shovel on glacis Oct42 Pg100-102 X / / /
Mounted “Feifel” air filters Nov42 Pg100-102 X / / /
Track guards on sides Nov42 X X / /
Pins on cupola for rain shield Nov42 Pg100-102 X X / /
Single piece side track guards Nov42 Pg100-102 X X / /
Hinged track guard front & rear Nov42 Pg100-102 X X / /
Reinforced gun mantle Nov42 Pg120-122 X X / /
Crew compartment heater Dec42 X  
Emergency escape hatch Dec42 Pg100-102 X X / /
Track tool stowage box Dec42 Pg100-102 X   /
Hull side at front not notched Dec42 X /
Last Pz.III stowage bin (high) Dec42    
Extended hull side at front Dec42 Pg100-102 X X / /
Starter plate mounted vertical Dec42 Pg100-102 X X / /
Straight side track guards Dec42 Pg100-102 X X / /
Mounts for S-Minen dischargers Dec42 Pg100-102 X / / /
Cables and antenna stowage moved Dec42 Pg100-102 X / / /
S-Minen dischargers Jan43 Pg120-122 X   / /
Exhaust muffler guard Jan43 Pg100-102 X X / /
Triangle ends on side track guards Jan43 Pg100-102 X X / /
Gun mantle cut for Tiger P Jan43 Pg100-102 X   /
Tiger baggage bin Jan43 Pg100-102 X X / /
6 cleaning rods Feb43 Pg100-102 X X / /
Starter shaft on lower hull rear Feb43 Pg100-102 X X / /
Engine compartment vent cover Feb43 Pg100-102 X / / /
18 bolts holding roadwheel rim Feb43 Pg100-102 /  
Stop K.F.F.2 Feb43 Pg100-102 X X / /
Ring retainer for track pins Mar43 / / /
Modified “Feifel” air filters Mar43 Pg120-122 X   / /
Triangle cover on rear deck Mar43 Pg120-122 X X /
Loader’s periscope Mar43 Pg120-122 X X / /
3 spare track holders Apr43 /   / /
Same casting for rear louvers Apr43 Pg120-122 X X
12 bolts holding roadwheel rim Apr43 /   / /
Drive sprocket hub Apr43 Pg120-122 X X / /
Flippy on engine hatch sides Apr43 Pg162-164 X X /
2 spare track holders Apr43 Pg120-122 X X / /
Maybach HL230 May43 Pg120-122 X X X /
Drop frames rear track guard May43 Pg120-122 X X /
Drop smoke candle dischargers Jun43 Pg134-135 X X / /
Shock absorber mounting Jun43 Pg134-135 X  
Drop two hinged toggle bolts Jun43 Pg134-135 X X / /
New turret w/cast dupola Jul43 Pg134-135 X X / /
Pistol port plug & uncut escape Jul43 Pg134-135 X   /
Zimmerit Aug43 App.F / / / /
Forged cap on combustion air intake Aug43 Pg134-135 X X
Stop Tiger P gun mantle Aug43 Pg134-135 X X /
New holders for track cable Aug43 Pg134-135 X X / /
Single headlight Aug43 /  
Wider slit in turret vision ports Aug43 Pg134-135 X X /
Tab on glacis to secure MG plug Aug43 Pg134-135 X X /
Stop submerged fording Sep43 Pg134-135 X X /
Add C-clamps top and rear Sep43 Pg140-141 X X / /
Chevrons on track Oct43 Pg134-135 X X / /
Headlight centered Oct43 Pg134-135 X X /
Stop S-Minen dischargers Oct43 Pg134-135 X X / /
Drop loader’s hatch lock disc Oct43 Pg134-135 X X /
Hand crank by antenna base Oct43 Pg134-135 X /
Stop pistol port plug Oct43 Pg140-141 X X / /
Stop track tool stowage box Oct43 Pg140-141 X X / /
Stop “Feifel” filters Oct43 Pg140-141 X X / /
External travel lock Nov43 Pg140-141 X   / /
Stop mounts for “Feifel” filters Dec43 Pg140-141 X X / /
20 t jack Jan44 Pg140-141 X X /
Stop shovel on glacis Jan44 Pg140-141 X X /
Cut hull side extension front & rear Jan44 Pg162-164 X X /
Cupola w/o 12-hour indicator ring Feb44 Pg162-164 X X /
Steel-tired roadwheels Feb44 Pg162-164 X X / /
“Fuchs” engine coolant heater Feb44 Pg162-164 X X
Turret ring guard & move tools Feb44 Pg162-164 X X /
Stop external travel lock Feb44 Pg162-164 X X /
600 mm diameter idler Feb44 Pg162-164 X X
Mounting bolt holes on starter plate Feb44 Pg162-164 X X /
40 mm turret roof Mar44 Pg162-164 X X /
Short hinged loader’s hatch Mar44 Pg162-164 X X /
Nahverteidigungswaffe Mar44 Pg162-164 X X /
T.Z.F.9c monocular gun sight Mar44 Pg162-164 X X /
Lighter muzzle brake with insert Apr44 Pg162-164 X X
Wood deck over fuel tanks Apr44 Pg162-164 X X
Dropped seal engine air cap May44 Pg162-164 X X
Trackpin return plate wider/angled  May44 Pg162-164 X X
2-piece 40 mm roof May44 Pg162-164 X X
Drain slits in cupola May44 Pg162-164 X X /
2 bolt escape hatch hinge Jun44 Pg162-164 X X
Three sockets for jib boom Jun44 Pg162-164 X X /
Poison gas detection panels Jul44    

X – denotes clear enough to model at 1:35 scale     / – denotes feature can be seen in a photo* Drawings of Tiger Fgst.Nr.V1 on pages 38-40 of Ref.1 are the basic starting point.

Ref.1 Germany’s Tiger Tanks – DW to Tiger I by Thomas L. Jentz and Hilary L. Doyle

Ref.2 Panzer Tracts No.6 schwere Panzerkampfwagen by Thomas L. Jentz and Hilary L. Doyle, Panzer Tracts

Ref.3 Panzer-Kampfwagen Tiger und Seine Abarten by Walter J. Spielberger, Motorbuch Verlag

Ref.4 Tiger I, Heavy Tank 1942-1945 by Tom Jentz and Hilary Doyle, New Vanguard

Creating an Accurate Tiger I Model

by Thomas L. Jentz and Hilary L. Doyle

Panzer Tracts


First U-Boat Of WWI Sunk


A painting depicting the final moments of U-15.

9 AUGUST 1914

On 8 August 1914, the First Light Cruiser Squadron, part of the Royal Navy’s Grand Fleet based at Scapa Flow, had set out on a patrol. Comprising HMS Southampton, HMS Birmingham, HMS Liverpool, HMS Falmouth, and the recently joined HMS Nottingham, the First Light Cruiser Squadron had been ordered to capture or sunk German trawlers, as well as destroy the wireless apparatus on any neutral trawlers encountered.

The patrol was relatively uneventful until about 03.00 hours on the morning of Sunday, 9 August 1914, at which point the cruisers were to the northward of Kinnaird Head on the east coast of Scotland. Lieutenant Stephen King- Hall, who had just come off the first watch, later recalled what happened next:

“I was awakened by the noise of the alarm bells ringing furiously. I pulled on some clothes and ran up on deck, to find it was early dawn, rainy and misty. Every second or so the mistiness ahead was illuminated by a yellow flash, and the crash of a gun followed.

“Suddenly the Birmingham loomed up straight ahead, or a shade on our starboard bow, distant about 2½ cables (500 yards). It was difficult at the moment to say whether the shells falling between us and the Birmingham were being fired by the Birmingham, or at her from a ship on the far side. I restrained our quarter-deck guns’ crew from firing into the Birmingham; she looked rather Teutonic in the early morning light. The mystery of the alarm was settled by the sudden appearance of part of the conning-tower of a German submarine, exactly between ourselves and the Birmingham. How the Birmingham actually turned and rammed her I could not see; but she did, and when the Birmingham turned away, a large oily pool, bubbling furiously, with three black objects resembling air-flasks floating in it, was all that remained of the U-boat.”

The victim of the ramming by HMS Birmingham was the Type U13 submarine U-15. Despite the thick fog, an alert look-out on the cruiser had spotted U-15 stationary on the surface, her engines having apparently failed. Birmingham’s guns opened fire, damaging the submarine’s conning tower and periscope. At the same time, her captain, Captain Arthur Duff, ordered the cruiser’s engines to full speed. At the same time, the U-boat’s commander, Kapitänleutnant Richard Pohle, instructed his crew to dive, but his actions were too late. Moments later HMS Birmingham’s bows slammed into U-15. The U-boat rolled over and sank with the loss of all hands – twenty-five men in total. She was the first U-boat loss to an enemy warship and the first U-boat sunk in the First World War.